In 1988 John and Caitlín Matthews were appointed Joint Presiders in recognition of their outstanding achievements in researching Celtic spirituality, and Arthurian and Grail lore, and in recognition of their contribution to the teachings of the Order. Caitlin is the author of over 50 books including Sophia: Goddess of Wisdom, a study of Divine Feminine in Gnostic, Jewish and Christian thought and King Arthur’s Raid on the Underworld, a new translation and study of the Welsh poet Taliesin’s extraordinary poem. John Matthews has produced over ninety books on the Arthurian Legends and Grail Studies, as well as short stories and a volume of poetry.